login
A363276
Number of partitions of n such that 4*(least part) <= greatest part.
1
0, 0, 0, 0, 1, 2, 4, 7, 12, 19, 29, 42, 61, 85, 119, 161, 217, 288, 380, 496, 643, 826, 1055, 1340, 1695, 2129, 2663, 3316, 4113, 5084, 6260, 7681, 9394, 11456, 13929, 16892, 20428, 24646, 29658, 35618, 42669, 51021, 60872, 72496, 86165, 102239, 121078, 143171, 168995, 199187, 234380, 275414
OFFSET
1,6
FORMULA
G.f.: Sum_{i>=1} Sum_{j>=0} x^(5*i+j) /Product_{k=i..4*i+j} (1-x^k).
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, May 27 2023
STATUS
approved